Efield

Submitted by JohLoh on Thu, 09/29/2016 - 16:28

Hallo everyone,

I am interested in charged particles and their interaction with an external field. (comparable with the video "Electrostatic" on this website). Can I use the efield command in Liggghts? And how can I define a charged particle (attribute q)?

Thanks for your help. Best wishes

Johannes

Forums:

ckloss's picture

ckloss | Mon, 10/03/2016 - 11:08

Hi Johannes,

yes you can use fix efield to do this!

Best wishes
Christoph

JohLoh | Tue, 10/04/2016 - 17:30

Thank you for your quick response, Christoph!

I want to simulate charging / discharging of particles. Do you have any suggestions concerning the implementation of a variable particle charge?

ckloss's picture

ckloss | Mon, 10/10/2016 - 21:21

Hi Johannes,

that really depends what kind of "charging" you mean. If you mean tribocharging, you'd have to modify one of the existing contact models to do this - but you'd need a bit of experience in coding w/ LIGGGHTS to accomplish this!

Best wishes!
Christoph

JohLoh | Tue, 10/18/2016 - 11:17

Hi Christoph,

thanks for your advice. I want to simulate Double Layer charging/ discharging of particles. I think, I will take some heat transfer code (contact models) and go for it.

Best wishes

Johannes